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| 1 | Effect on vibration of the complementary gas flow between centrifugal compressor stages 显示文摘 | JI Chunjun LI Jiana ZHAO Heng | 2007 | Journal of Vibration Measurement & Diagnosis2007，，： | 1 |
| 2 | Cluster formula of Fe-containing Monel alloys with high corrosion-resistance显示文摘 | Baozeng Li Junjie Gu Qing Wang Chunjun Ji Yingmin Wang Jianbing Qiang Chuang Dong | 2012 | Materials Characterization2012，，： | 1 |
| 3 | A ferrite stainless steel Cr27Mo6Al3Cu with oxidation resistance显示文摘 | Baozeng Li Qing Wang Yingmin Wang Jianbing Qiang Xiaona Li Chunjun Ji Xiaolei Guo Chuang Dong Liqiang Zuo | 2012 | Materials and Design2012，，： | 1 |
| 4 | β -Ti Alloys with Low Young’s Moduli Interpreted by Cluster-Plus-Glue-Atom Model显示文摘 | Qing Wang Chunjun Ji Yingmin Wang Jianbing Qiang Chuang Dong | 2013 | Metallurgical and Materials Transactions A2013，，4： | 1 |
| 5 | Using Tip Gaps on Tandem Diffuser to Broaden the Operation Range of a Centrifugal Compressor显示文摘Gaps in compressors are generally unfavorable because they lead to energy loss.However,gaps on diffuser blades can broaden the operation range of a compressor.To broaden the operation range of a centrifugal compressor with a tandem diffuser,gaps with different sections and widths on the diffuser blades were examined to determine their influence on the compressor performance.The results show that the compressor’s surge margin increased from 33.28% to 49.2% for a 2.5%tip gap ratio,while its stability margin increased from 44% to 60.5%.However,pressure ratio and efficiency losses of 1.16% and 1.14%,respectively,were incurred.Gap widths less than 5%of the height of the diffuser blade are adequate for broadening the operation range,whereas gap ratios greater than 5%cause more energy loss without broadening the operation range further.Gaps can also reduce the Mach number in the diffuser blade channels and can be influenced by the impeller-tip gap.Moreover,diffuser gaps on the shroud side yield better performance than those on the hub side.An experiment was conducted to investigate the reliability of the calculation and conclusions in this study,and the results proved that the conclusions are valid for different types of centrifugal compressors. | FANG Junyi JI Chunjun LI Chunyang SUN Qi | 2021 | Journal of Thermal Science2021，30，3： | 0 |
| 6 | Influence of Tip Clearance on Centrifugal Compressor IGV Regulation and Improvement显示文摘In order to avoid collision with the end wall of the casing when the guide vane rotates around its own rotating axis in a centrifugal compressor,a circular gap will be left at the top of guide vane.Part of the gas flow through the clearance cannot be effectively regulated,and the tip clearance leakage vortex is formed,which has an impact on the mainstream and makes the compressor performance decline.In order to solve this problem,in this paper,three improved schemes of guide vane channel structure,including rectangular channel,cambered channel,and globular channel,were put forward,which can effectively improve the regulation ability of guide vane.Comparing these three improved channels with the original one,the stable operating range of the compressor was enlarged;the power consumption of the compressor was reduced and the efficiency of the compressor was improved.By comprehensive comparison,the cambered channel has better performance and is easier to process,which has potential to be widely used in practice. | SUN Qi WANG Huishe ZHU Junqiang JI Chunjun LI Chunyang YAO Ka | 2021 | Journal of Thermal Science2021，30，3： | 0 |
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